There's some unwanted noise in your backported yasm package, i.e.
here's what the debdiff looks like right now:
diff -u yasm-1.2.0/debian/changelog yasm-1.2.0/debian/changelog
--- yasm-1.2.0/debian/changelog
+++ yasm-1.2.0/debian/changelog
@@ -1,3 +1,10 @@
+yasm (1.2.0-1~bpo70+1) wheezy-backports; urgency=low
+
+ * Non-maintainer upload.
+ * Rebuild for wheezy-backports
+
+ -- Mads Hansen<d@taba.se> Sun, 20 Apr 2014 18:44:47 +0200
+
yasm (1.2.0-1) unstable; urgency=low
* New upstream release.
only in patch2:
unchanged:
--- yasm-1.2.0.orig/.pc/.quilt_patches
+++ yasm-1.2.0/.pc/.quilt_patches
@@ -0,0 +1 @@
+debian/patches
only in patch2:
unchanged:
--- yasm-1.2.0.orig/.pc/.version
+++ yasm-1.2.0/.pc/.version
@@ -0,0 +1 @@
+2
only in patch2:
unchanged:
--- yasm-1.2.0.orig/.pc/.quilt_series
+++ yasm-1.2.0/.pc/.quilt_series
@@ -0,0 +1 @@
+series